Steadying device for lathes



H. c. WATER ER. STEADYING DEVICE FOR LATHES.

APPLIC'ATION HLED SEPT. 14, I920.

1,419,786. Patented June 13, 1922.

11 A O I l 7 ,5 10 e a 11 LL11 17 A Fig.2. 5

Tim's/c6 01. Harold C. Wade/e1.

HAROLD CHARLES WATER/EB, 0F SOUTHALL, ENGLAND, ASSIGNOR TO LEONARD PATRICK DBISCOLL, 0F EALING, LONDON, ENGLAND.

STEADYING DEVICE FOR LATI-IES.

Specification of Letters Patent.

Patented June 13, 1922.

Application filed. September 14, 1920. Serial No. 410,113.

provements in Steadying Devices for Lathes,

of which the following is a specification.

My invention relates to lathes.

My invention has for its object to provide an improved device whichenables'the material being operated upon in the lathe to be steadied in an eflicient manner and which at the same time reduces the frictional "resistance involved in the steadying operation'to aminimum.

My invention consists in a device of the type indicated in which the material is steadied by being gripped in a sleeve mounted on ball or like anti-friction bearings which are disposed in a housing adapted to be clamped to the lathe-bed.

My invention further consists in the improved steadying device for lathes to be hereinafter described.

Referring now to the accompanying drawings which illustrate my invention and form part of my s ecification,

Figure 1 s ows an elevation of a device constructed according to my invention, while,

Figure 2 shows a vertical section on the line A-A on Figure 2.

In carrying my invention into effect according to one form I construct a housing formed of an annular portion, 1, provided with a base, 2, which rests on the lathe-bed, 3. The housing is clamped to the lathe-bed in the desired position by means of the bolt, 4, and the plate, 17

In the annular portion, 1, three holes, 5,

equidistant from one another are formed which give access to the adjusting screws, 6, for gripping the materialbeing operated upon in the lathe. v

An annular recess, 7, is formed in the housing to accommodate the projecting ends 'of the screws, 6.

The screws, 6, of which there three in number, engage with threaded holes, 8, equally spaced on the rotatable sleeve, 9;

These screws are provided with squared recesses, 10, in their outer ends so that they may be adjusted in position radially by frictional resistance. of the device allows a w1de range of sizes means of the chuck-key, 11, to suit the size of the material being operated upon.

The sleeve, 9, is provided with grooves, 12, which co-operate with grooves, 18, on the stationary members, 14, to form ball-races for the balls, 15, flanges, 16, are formed on the stationary members, 14.

Grooves, 18 and 19, are formed on the member, 14 and sleeve, 9, respectively for introducing the balls into the ball-races, the

position of these grooves being preferably such that they are out of register with one another when the screws, 6, register with the holes, 5.

The device isassembled by forcing the members, 14, into the bore of the annular portion, 1, of the housing and assembling the sleeve, 9, therewith so that the grooves, 12 and 13, register with one another and the groove, 18, registers with the groove, 19. The balls are then introduced into the ballraces through the latter set of grooves.

The device when set up on the lathe-bed has the axis of rotation of the sleeve, 9, co-

may be steadied in an exceedingly efficient manner and with the minimum amount of Also the construction of material to be accommodated, while, the absence of projecting rotating parts obviates accidents to the machinists.

I wish it to be understood that the above example of my invention is simply to be regarded as typical only and not as in any Way restricting my invention thereto as modifications may be made therein without departing beyond the scope of my invention.

What I claim is 1. In a device for steadying material being operated upon in a lathe, a housing, a rotatable member in saidhousing, said housing and rotatable member having coacting longitudinally spaced bearings, an intermediate non-bearing zone, and means for gripping the material disposed in said rotatable memher, said means being located in said nonbearing zone.

2. In a device for steadying material being operated upon in a lathe, the combination of a housing, a rotatable member in said housing,

a plurality of longitudinally spaced antifriction bearing sets operatively disposed between said housing and rotatable member together with means for gripping material disposed in said rotatable member and located between said anti-friction bearing sets, as set forth.

3. In a device for steadying material being operated upon in a lathe the combination of a housing, a rotatable member in said housing, a plurality of longitudinally spaced ball bearing sets op eratively disposed between said housing and rotatable member together with means for gripping material disposed in said rotatable member and l0- cated between said ball bearing sets, as set forth. 7

4. In a device for steadying material being operated upon in a lathe, the combination of a housing, a rotatable member in said housing, said housing and rotatable member having longitudinally spaced bearings provid ing an intermediate non-bearing zone, together with adjustable means for gripping material disposed in said rotatable member and located in said non-bearing zone.

5. In a device for steadying material being operated upon in a lathe, the combination of a housing, a rotatable member in said housing, a plurality of longitudinally spaced anti-friction bearing sets operatively disposed between said housing and rotatable member and providing a non-bearing zone between them, together with adjustable 'means for gripping material disposed in said rotatable member and located between said anti-friction bearing sets and in said nonbearing zone.

6. In a device for steadying material being operated upon in a lathe, the combination of a housing, a rotatable member in said housing, a plurality of longitudinally spaced ball bearing sets operatively disposed between said housing and rotatable member and pro viding a non-bearing zone between them, together with adjustable means for gripping material disposed-in said rotatable member and located between said ball bearing sets and in said non-bearing zone.

7 7. In a device for steadying material being operated upon in a lathe, a housing, a rotatable member in said housing, said housing androtatable member having longitudinally spaced bearings and an intermediate nonbearing screwed means for gripping thematerial disposed. in said rotatable member and located zone together with adjustable between said bearings and in said non-bearing zone.

8. In a device for steadying material being operated upon in a lathe, the combination of a housing, a rotatable member in said housing, a plurality of longitudinally spaced anti-friction bearing sets operatively disposed between said housing and rotatable member and providing an intermediate nonbearing zone together with adjustable screwed means for gripping material disposed in said rotatable member and located between said anti-friction bearing sets and in said non-bearing zone. 1

9. In a device for steadying material being operated upon in a lathe the combinationof a housing, a rotatable member in said housing, a plurality of longituchnally spaced ball bearing sets operatively disposed between said housing and rotatable member and providing an intermediate non-bearing zone together with adjustable screwed means for gripping material disposed in said rotatable member and located between said ball bearing sets and in said non-bearing zone. V i

10. In a device for steadying material being operated upon in a lathe, the combination of a housing having spaced peripheral holes, grooved flanged rings in said housing, a rotatable member having spaced grooves thereon co-acting with said first mentioned grooves, anti-friction bearing members in said grooves, a plurality of adjusting screws in said rotatable member together with means for securing said housing to a -lathe' bed, as set forth.

11. In a device for steadying material being operated upon in a lathe, the combination of a housmg having peripherally spaced holes, a rotatable member in said housing,

said housing and rotatable member having co-acting longitudinally spaced hearings together with means for gripping the material disposed in said rotatable member and operable through said holes insaid housing, as set forth. 7 12. In a device for steadying materia being operated upon in a lathe, the combination of a housing having peripherally spaced holes, a rotatable member in said housing, a plurality of longitudinally spaced anti-friction bearing sets operatively disposed between said housing and rotatable member together with means for gripping the material disposed in said rotatable member, said gripping means being located between said anti-friction sets and operable through said holes in said housing, as set forth.

13.- In a device for steadying material being operated upon in a lathe, the combina tion of a housing having peripherally spaced holes, a rotatable member in saidhousing, a plurality of longitudinally spaced ball bearing sets operatively disposed between said housing and said rotatable member together with means for gripping the material disposed in said rotatable member, said gripping means being located between said ball bearing sets and operable through said holes in said housing, as set forth.

14:. In a device for steadying material being operated upon in a lathe, the combination of a housing having peripherally spaced holes, a rotatable member in said housing, said housing and rotatable member having co-acting longitudinally spaced bearings together with screwed means for gripping the material disposed in said rotatable member, said screwed means beinglocated between said bearings and operable through said holes in said housing, as set forth.

I 15. In a device for steadying material being operated upon in a lathe, the combination of a housinghaving peripherally spaced holes, a rotatable member in said housing, a plurality of longitudinally spaced antifriction bearing sets disposed between said housing and said'rotatable member together with screwed means for gripping the ma terial disposed in said rotatable member said screwed means being located between said bearings and operable through said holes in said housing, as set forth.

.16. In a device for steadying material be ing operated upon in a lathe, the combination of a housing having peripherally spaced holes, a rotatable member in said housing, a plurality of longitudinally spaced ball bearing sets operatlvely disposed between said housing and rotatable member, together with screwed means for gripping the material disposed in said rotatable member, said screwed means being located between said bearings and operable through said holes in said housing, asset forth.

In testimony whereoif I have signed my name to this specification.

HARGLD CHARLES WATERER. 

